Playground mat



FIG. 1 is a top perspective of a playground mat showing my design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a bottom plan view thereof;

FIG. 5 front elevation view thereof, the rear being identical; and,

FIG. 6 is a right side elevation view thereof; the left side being identical.

The broken lines in FIGS. 1, 2, and 4 depict environmental structure or boundaries that form no part of the claimed design. 

CLAIM The ornamental design for a playground mat, as shown and described. 